简易加法计算器

　　 
　　这是一个非常简陋的整数加法计算器程序，希望大家给些意见。

import javax.swing.JOptionPane;

public class Addition {
public static void main (String args[]) {
String firstNum, secondNum;
int num1, num2, sum;

firstNum = JOptionPane.showInputDialog
("Enter first integer");

secondNum = JOptionPane.showInputDialog
("Enter secong integet");

num1 = Integer.parseInt(firstNum);
num2 = Integer.parseInt(secondNum);

sum = num1 + num2;

JOptionPane.showMessageDialog(
null,"The sum is "+ sum,
"Results",JOptionPane.INFORMATION_MESSAGE);

System.exit(0);
}
}

============================================
*TonyCong*

原文转自：http://www.ltesting.net